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Organic, polymer, and oxide-based transistors are among the alternatives to silicon being considered for flexible display pixel circuitry. Carrier mobilities in the semiconductors now exceed those of amorphous silicon, and switching voltages can be below 2 V. In this presentation, we focus on gate dielectrics compatible with these semiconductors. First, we consider polymer dielectrics in which static...
An all polymer EO modulator with a simple fabrication process using commercially available cladding materials has been designed, fabricated, and characterized. The result is a low Vπ modulator that is capable of being scaled up to larger scale production. Continued work on this project is being made towards designing an amplitude modulator structure and developing traveling wave transmission line...
Mode transformers between very compact substrate removed waveguides and very big polymer waveguides were designed and fabricated. Transition loss between two types of waveguides was quantified and 7 dB insertion loss improvement was measured.
We report on scalable bidirectional optical coupling between silicon-on-insulator waveguides and polymer waveguides. Coupling loss of 0.8 dB and ±2 µm misalignment loss of 0.3 (0.6) dB are measured at TM (TE) polarization states.
We have demonstrated the detection of a 12MHz ultrasound wave using a microtoroidal whispering gallery mode optical resonator, encapsulated in a low-refractive-index polymer with its coupling tapered-fiber. The sensitivity of our device is 35 mV/KPa.
A compact 19-core fan-in/fan-out waveguide device for uncoupled multi-core fibers was demonstrated using laminated polymer waveguide. The coupling losses from a 19-core fiber to nineteen single-core fibers were less than 2.0 dB and the sum of crosstalk from all neighboring cores were lower than −40 dB.
We demonstrate a novel method to define high Q silicon photonic crystal cavities with functional polymer cladding with ultra precision using spatially resolved electron beam bleaching of a chromophore doped polymer.
The role of processing dictates the properties and successful integration of OEOMs to an equal extent as chemical synthesis and device design. With redesigned systems, thoughtful processing, and proper molecular and device design, OEOMs will become crucial components of photonic technologies.
We apply this general approach to a novel high-performance two-chemistry photopolymer. After independently obtaining all model parameters, we validate the entire model by testing it in different regimes. First, we study the effect of monomer species and loading on M/# to test the capability of the model, derived only from weak consumption measurements, to the complete consumption of monomer. Second,...
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